Note 4 - Inventories (Details) - Inventory (USD $) In Thousands, unless otherwise specified	May 31, 2013	May 31, 2012
Inventory [Line Items]
	$ 45,941	$ 33,370
Successor [Member]
Inventory [Line Items]
Raw materials and supplies	14,880
Work in process	8,356
Finished goods	22,705
	45,941
Predecessor [Member]
Inventory [Line Items]
Raw materials and supplies		10,228
Work in process		3,550
Finished goods		19,592
		$ 33,370